- #1
Show how you arrived at this answer.aliciaw0 said:i don't understand why
(-m_2*g)/(((-m_2)/2)-m_1) isn't right
That's correct. (Be careful with signs.)because the a of mass#2 is (-a_1)/2 right?
OK.aliciaw0 said:x m_1: T=m_1*a_1
Two problems here:y m_2: T-m_2*g=m_2*a_2
If m_1 moves to the right, then m_2 moves down: this means that if you call a_1 positive, then by your sign convention for m_2, its acceleration should be negative a_2.a_2= a_1/2
Acceleration is the rate of change of velocity with respect to time. It is important to find an expression for it because it helps us understand how an object's velocity changes over time, which is crucial in predicting its future motion.
Acceleration can be calculated by dividing the change in velocity by the change in time. The formula for acceleration is a = (vf - vi) / t, where a is acceleration, vf is final velocity, vi is initial velocity, and t is time.
The acceleration of an object can be affected by several factors, including the mass of the object, the force applied to the object, and the object's initial velocity. Other factors such as friction, air resistance, and gravity can also play a role in determining the acceleration of an object.
Yes, acceleration can be negative. A negative acceleration, also known as deceleration, occurs when an object's velocity decreases over time. This can happen when a force is applied in the opposite direction of motion or when an object is slowing down due to friction or air resistance.
By using an expression for acceleration, we can determine the rate at which an object's velocity is changing over time. This allows us to predict the object's future motion by calculating its future velocity and position. This information can be useful in various fields such as transportation, engineering, and sports.